src/content/public/renderer/media_stream_audio_sink.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/public/renderer/media_stream_audio_sink.h"
   6
   7 #include "base/logging.h"
   8 #include "content/renderer/media/media_stream_track_extra_data.h"
   9 #include "content/renderer/media/webrtc_local_audio_track.h"
  10 #include "third_party/WebKit/public/platform/WebMediaStreamSource.h"
  11 #include "third_party/WebKit/public/platform/WebMediaStreamTrack.h"
  12
  13 namespace content {
  14
  15 void MediaStreamAudioSink::AddToAudioTrack(
  16     MediaStreamAudioSink* sink,
  17     const blink::WebMediaStreamTrack& track) {
  18   DCHECK(track.source().type() == blink::WebMediaStreamSource::TypeAudio);
  19   MediaStreamTrackExtraData* extra_data =
  20       static_cast<MediaStreamTrackExtraData*>(track.extraData());
  21   // TODO(xians): Support remote audio track.
  22   DCHECK(extra_data->is_local_track());
  23   WebRtcLocalAudioTrack* audio_track =
  24       static_cast<WebRtcLocalAudioTrack*>(extra_data);
  25   audio_track->AddSink(sink);
  26 }
  27
  28 void MediaStreamAudioSink::RemoveFromAudioTrack(
  29     MediaStreamAudioSink* sink,
  30     const blink::WebMediaStreamTrack& track) {
  31   MediaStreamTrackExtraData* extra_data =
  32       static_cast<MediaStreamTrackExtraData*>(track.extraData());
  33   // TODO(xians): Support remote audio track.
  34   DCHECK(extra_data->is_local_track());
  35   WebRtcLocalAudioTrack* audio_track =
  36       static_cast<WebRtcLocalAudioTrack*>(extra_data);
  37   audio_track->RemoveSink(sink);
  38 }
  39
  40 }  // namespace content